CVE-2026-80195

Kimai before 2.63.0 contains a business logic / improper authorization vulnerability in the team update API endpoint (PATCH /api/teams/{id}), which removes all existing team members before validating the submitted replacement member list. An authenticated teamlead (or other user) with permission to edit a team can submit a malformed members payload; although Kimai returns a validation error, the existing membership rows have already been deleted. This bypasses the dedicated member-removal endpoint's protection against removing teamleaders and can leave a team with no members or teamleaders, disrupting team-based access control.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/kimai/kimai/security/advisories/GHSA-6rxf-4hh9-pp46
https://www.vulncheck.com/advisories/kimai-before-2.63.0-team-membership-removal-via-api

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-26 05:18

Updated : 2026-09-03 05:15

NVD link : CVE-2026-80195

Mitre link : CVE-2026-80195

CVE.ORG link : CVE-2026-80195

JSON object : View

Products Affected

No product.

CWE

CWE-841

Improper Enforcement of Behavioral Workflow

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